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Thanks for the input. Honestly I am still learning as mentioned before, and did not get exactly what you meant by ?applying changes in the opposite direction of SD_3?

However, my biggest concern...

Just realized that I forgot to reset the LTFTs prior to scanning. Could this be the cause for the above issues?Thanks.

Well did some logging with the latest tune today. I have got more observations as listed below:

- The bucking issue has become worse. when I put in 1st gear, start rolling going into a curve, I...

Well before dropping the tank, I decided to check the fuel pump relay, and it turned out to be the culprit. More than 14 years in service. Replaced the relay today. Hopefully will do some logging...

The stupid fuel pump failed. The new pump did not last long. Unfortunately, logging will not be soon.

Thanks man.
I am going to log with the updated Tune.
The bucking is at a low rpm as you mentioned but I am did not pay attention to the exact speed. could be at 40 rpm or even less.
I have LS7...

Thanks for your time man.
Did another log with the new tune. I have noticed less bucking or I would say it has improved. I am also wondering if it is normal that the car wants to surge or die...

Went for a 20 min drive and here is the log. I did not change anything into the tune you modified. That is why I did not attach it again in this post. Maybe based on this log, some more changes...

Will do that. Thanks

Everyday I am learning something new. Thanks.
Will share the log once done.

My question was about the PE. Just please have a look at the file I shared earlier when the MAF was enabled and the...

Thanks man. Noticed you have made lots of changes into the tune.
I noticed the hesitation at steady cruise, but honestly did not pay attention in off-idle or decel. might be there, or might not but...

Here is the log and VE tune done with both LTFTs & STFTs disabled. This is based on Videos from Chopperdoc181 in youtube.

Based on the files, hope some specific changes could be advised to...

Thanks for the reply. Will share the SD tune and log later on today. I normally keep the LTFTs disabled and clear the trims from the scanner.

FAST intakes are horrible and have lots of issues honestly. I installed 92mm FAST intake and had a hard time to align the stock injectors.

@SiriusC1024
Finished with the VE & MAF tuning to the best of my knowledge. Put the tune back in closed loop and did some logging today. My observations during the short drive are as following:
...

Thanks Man. Will try to get the VE tuning first, next will be MAF and put the tune back in Closed Loop. Then will go from there.

Yes it is a cammed LS6 in a 68 camaro. Don?t have the cam specs though as it was installed by the previous owner.

I am also having another issue which is strangely happing sometimes when coming...

Thanks Alvin. Will have a look into that.

Well noted. Changed the flow rate back to 42.2 and logged some more data. It started to run very rich pulling around 20% or so of fuel. So I reduced the entire VE table by 10%. It is still running...

Thanks Alvin. Can you please let me know exactly which table in my tune, which I attached here, that need to be modified.

Thanks for the reply. I am confused now. When I asked FIC representative about the flow rates at 43.5psi and 58psi with the vacuum line disconnected, he said it should be 42lb at 43.5psi and 50 at...

I have attached my tune and the log.
I kept the default Min Injector Pulse Width as it was before.
I put 0.386 for Min Injector Pulse Width, which I got from FIC Tech Guy.
For the flow rate, as...

Yes I am tuning in OL currently. I am not sure how to do it the way you described in closed loop.
Yes the tune you are seeing based on the BOSCH data you shared in the repository. But when I...

Well there were some areas at low rpms where the car was running rich and was not able to adjust them through VE tuning. So I thought that since there is full data specifically available for the...

Anybody can pin point why the car is running rich after inputing the injectors 0280155868 data from forum repository, and why is it different than what FIC sent me. Thanks in advance.